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| NT2W757GR Datasheet, PDF (4/23 Pages) NICHIA CORPORATION – Built-in ESD Protection Device | |||
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NICHIA STS-DA1-3938 <Cat.No.150819>
Rank
Rank
Rank
Rank
sm6550a
sm6550b
sm6550c
sm6550d
x
Center Point
y
0.3123
0.3282
Minor Axis
a
0.004515
Major Axis
b
0.010935
Ellipse Rotation Angle
Φ
-32.35
* Ranking at TS=25°C.
* Forward Voltage Tolerance: ±0.07V
* Luminous Flux Tolerance: ±5%
* Color Rendering Index Ra Tolerance: ±2
* Color Rendering Index R9 Tolerance: ±4
* The R9 value for the above rank shall be greater than 0.
* Chromaticity Coordinate Tolerance: ±0.003
* LEDs from the above ranks will be shipped.
The rank combination ratio per shipment will be decided by Nichia.
Rank
sm6550e
Rank
sm6550f
Definition of the MacAdam ellipse ranks:
b
60°
A perfect circle is divided
into 60 degree-sections
and then transformed
into the MacAdam ellipse
that is presented
on the chromaticity diagram
in this document.
Φ
a
Luminous Flux Ranks by Color Rank, Color Rendering Index Rank
Ranking by
Luminous Flux
Ranking by
P13
P14
P15
P16
Color Coordinates,
Color Rendering Index
sm503,sm5050a,sm5050b,sm5050c,sm5050d,sm5050e,sm5050f, R70,R8000
sm573,sm5750a,sm5750b,sm5750c,sm5750d,sm5750e,sm5750f,
sm653,sm6550a,sm6550b,sm6550c,sm6550d,sm6550e,sm6550f
R9050
3
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